Wrap the flange with duct tape. Lubricate the seal. I use DC-4. Hook the seal under the bottom of the flange. Use two round shaft screw drivers to walk it the rest of the way around and behind the flange.
The seal will return to it's original dimension.
Right or wrong, that's the way I do it.
Randy Hooper
Every thing you all said sounds good, we did one other thing when building our engine though, we put the seal in some very hot water to soften it up a bit first & used a special tool to stretch it around the prop flange.
Russ
How do these instructions change if the crank is out of the case? My engine is yet to be assembled. Should I wait until the case is together?
I remember watching John at Matituck put my seal on when he built my engine - he had a special tool that was remarkably simple, yet quite magic. "Don't blink, or you'll miss it!" he said, and voil? - the seal was over the flange!
I've never looked to see if it is generally available, or something Mattituck built...
Paul
Cut it. Pliobond the cut, place the cut at around the 1 o'clock position. No problems with my cut.
I remember watching John at Matituck put my seal on when he built my engine - he had a special tool that was remarkably simple, yet quite magic. "Don't blink, or you'll miss it!" he said, and voilà - the seal was over the flange!
I've never looked to see if it is generally available, or something Mattituck built...
Paul
OK, now that we know how to put a new seal in, how do you remove the old one?
I second what Mahlon said. Just be careful as cautioned earlier about scratching the crank.
Wrap the flange with duct tape. Lubricate the seal. I use DC-4. Hook the seal under the bottom of the flange. Use two round shaft screw drivers to walk it the rest of the way around and behind the flange.
The seal will return to it's original dimension.
Right or wrong, that's the way I do it.
I've had a slow leak of dark oil from that nose seal area for a while. This thread finally got me off my butt to fix it. I got the old seal out easy enough but there is nice coating of Pliobond or some type of adhesive that does not want to come clean with acetone and a rag. Any recommendations out there for homemade or store bought tools that are curved that I can get in there to scrape the crud off?
Joe b.
RV-7